ASUS P8B75MCSM 用户手册

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Chapter 1: Product introduction

Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the 

system may damage the motherboard components. These are not jumpers! Do not place 

jumper caps on the fan connectors!

CPU and chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1/2)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the 

black wire of each cable matches the ground pin of the connector.

•  The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.
•  Only the 4-pin CPU fan supports the ASUS FanXpert and Q-Fan 2 feature.

 

The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT is 

standardized as IEEE 1284, which is the parallel port interface on IBM PC-compatible 

computers.

CHA_FAN1

CHA_FAN2

GND
+12V
Rotation

Rotation

+12V

GN

D

CPU_FAN

CPU 

FA

N PW

M

CPU 

FA

N IN

CPU 

FA

N PW

R

GN

D

LPT

PIN 1

SLCT PE BUSY ACK# PD

7

PD

6

PD

5

PD

4

PD

3

PD

2

PD

1

PD

0

S

T

B

#

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

SLIN

#

INIT

#

ERR#

AF

D